61844044816 has 20 divisors (see below), whose sum is σ = 120883219452. Its totient is φ = 30648375296.

The previous prime is 61844044807. The next prime is 61844044819.

61844044816 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 24554890000 + 37289154816 = 156700^2 + 193104^2 .

It is not an unprimeable number, because it can be changed into a prime (61844044819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17101081 + ... + 17104696.

Almost surely, 2^61844044816 is an apocalyptic number.

It is an amenable number.

61844044816 is a deficient number, since it is larger than the sum of its proper divisors (59039174636).

61844044816 is a wasteful number, since it uses less digits than its factorization.

61844044816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34205898 (or 34205892 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

The spelling of 61844044816 in words is "sixty-one billion, eight hundred forty-four million, forty-four thousand, eight hundred sixteen".